Finding the Fourth Proportional to 450,120.61, 621,392.21 and 347,915.26
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Solution
The fourth proportional to 450,120.61, 621,392.21 and 347,915.26 is: 480,297.56
Step by Step Solution
- Step 1: Write the proportion equation
450,120.61 : 621,392.21 = 347,915.26 : x - Step 2: Convert to fraction form
450,120.61/621,392.21 = 347,915.26/x - Step 3: Cross multiply
450,120.61x = 621,392.21 × 347,915.26 - Step 4: Simplify right side
450,120.61x = 216,191,832,304.13 - Step 5: Solve for x
x = 216,191,832,304.13/450,120.61 - Step 6: Final answer
x = 480,297.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.